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Friday, March 13, 2009

Well, we're the Knights, right? So we should have a few wizards. Eddie, G3ZJO, should certainly be among those so honored. Above you can see his "G Beacon" MEPT transmitter. He uses two 555 chips to generate the G letter in Morse code. The longer chip on the bottom is (I think) the RF part of the transmitter. Ingenious. I also like his selection of frequency: 10140073 Hz. FB.

Eddie has a lot of other tricks up his sleeve, including the use of a Voltage Controlled Variable Oscillator driven by a PIC chip for a very simple WSPR transmitter.

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